terraform: add instance_id to trigger reinstall

terraform/all-in-one/main.tf

@@ -20,6 +20,7 @@ module "install" {
   nixos_system           = module.system-build.result.out
   ssh_private_key        = var.ssh_private_key
   debug_logging          = var.debug_logging
+  instance_id            = var.instance_id
 }
 
 module "nixos-rebuild" {

terraform/all-in-one/variables.tf

@@ -39,6 +39,12 @@ variable "target_port" {
   default     = 22
 }
 
+variable "instance_id" {
+  type        = string
+  description = "The instance id of the target_host, used to track when to reinstall the machine"
+  default     = null
+}
+
 variable "ssh_private_key" {
   type        = string
   description = "Content of private key used to connect to the target_host"

terraform/install/main.tf

@@ -1,8 +1,11 @@
 locals {
-  nixos_anywhere_flags = "${var.debug_logging ? "--debug" : ""} ${var.kexec_tarball_url != "" ? "--kexec ${var.kexec_tarball_url}" : "" } --store-paths ${var.nixos_partitioner} ${var.nixos_system} ${var.target_user}@${var.target_host}"
+  nixos_anywhere_flags = "${var.debug_logging ? "--debug" : ""} ${var.kexec_tarball_url != null ? "--kexec ${var.kexec_tarball_url}" : "" } --store-paths ${var.nixos_partitioner} ${var.nixos_system} ${var.target_user}@${var.target_host}"
 }
 
 resource "null_resource" "nixos-remote" {
+  triggers = {
+    instance_id = var.instance_id
+  }
   provisioner "local-exec" {
     environment = {
       SSH_PRIVATE_KEY = var.ssh_private_key

terraform/install/variables.tf

@@ -39,6 +39,12 @@ variable "ssh_private_key" {
   default     = ""
 }
 
+variable "instance_id" {
+  type        = string
+  description = "The instance id of the target_host, used to track when to reinstall the machine"
+  default     = null
+}
+
 variable "debug_logging" {
   type        = bool
   description = "Enable debug logging"